GN21 is managed by a Steering Committee of local residents and by a few small teams responsible for specific projects and activities. We hold monthly public meetings on a wide range of topics (see Events) as well as an annual Eco-Fair at the Wychwood Art Barns. Although we are based in Toronto's Ward 12, we welcome participation (including ideas for meetings or projects) by anyone who shares our goals. Offers of volunteer help are especially welcome!

Green Neighbours 21 is an accredited member of Climate Action Network Canada, an umbrella group of more than 75 Canadian organizations concerned with climate change.